Step 2: Check The Battery Power Supply Circuit To The Daytime Running Light-ECU

Test at daytime running light-ECU connector A-28.

1. Disconnect daytime running light-ECU connector A-28 and measure the voltage available at the wiring harness side of the connector.
2. Measure the voltage between terminal No. 1 and ground. See Fig 1. The voltage should equal approximately 12 volts (battery positive voltage).

Is the measured voltage approximately 12 volts (battery positive voltage)?

• YES
  
  Go to step 5 .
• NO
  
  Go to step 3 .

Fig 1: Measuring Voltage Between Connector A-28 Terminal No. 1 & Ground

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.